J. A. Moore investigated the inheritance of spotting patterns in leopard frogs (J. A. Moore. 1943. Journal of Heredity 34:3–7). The pipiens phenotype had the normal spots that give leopard frogs their name. In contrast, the burnsi phenotype lacked spots on its back. Moore carried out the following crosses, producing the progeny indicated. Parent phenotypes Progeny phenotypes burnsi × burnsi 39 burnsi, 6 pipiens burnsi × pipiens 23 burnsi, 33 pipiens burnsi × pipiens 196 burnsi, 210 pipiens a. On the basis of these results, is the burnsi phenotype most likely inherited as a dominant trait or as a recessive trait? b. Give the most likely genotypes of the parent in each cross (use B for the burnsi allele and B+ for pipiens allele). c. Use a chi-square test to evaluate the fit of the observed numbers of progeny to the number expected on the basis of your proposed genotypes.
J. A. Moore investigated the inheritance of spotting patterns in leopard frogs (J. A. Moore. 1943. Journal of Heredity 34:3–7). The pipiens phenotype had the normal spots that give leopard frogs their name. In contrast, the burnsi phenotype lacked spots on its back. Moore carried out the following crosses, producing the progeny indicated. Parent phenotypes Progeny phenotypes burnsi × burnsi 39 burnsi, 6 pipiens burnsi × pipiens 23 burnsi, 33 pipiens burnsi × pipiens 196 burnsi, 210 pipiens a. On the basis of these results, is the burnsi phenotype most likely inherited as a dominant trait or as a recessive trait? b. Give the most likely genotypes of the parent in each cross (use B for the burnsi allele and B+ for pipiens allele). c. Use a chi-square test to evaluate the fit of the observed numbers of progeny to the number expected on the basis of your proposed genotypes.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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J. A. Moore investigated the inheritance of spotting patterns in leopard
frogs (J. A. Moore. 1943. Journal of Heredity 34:3–7). The pipiens
phenotype had the normal spots that give leopard frogs their name. In
contrast, the burnsi phenotype lacked spots on its back. Moore carried
out the following crosses, producing the progeny indicated.
Parent
burnsi × burnsi 39 burnsi, 6 pipiens
burnsi × pipiens 23 burnsi, 33 pipiens
burnsi × pipiens 196 burnsi, 210 pipiens
a. On the basis of these results, is the burnsi phenotype most likely
inherited as a dominant trait or as a recessive trait?
b. Give the most likely genotypes of the parent in each cross (use B for the
burnsi allele and B+ for pipiens allele).
c. Use a chi-square test to evaluate the fit of the observed numbers of
progeny to the number expected on the basis of your proposed genotypes.
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